<template>
  <div id="app">
    <div class="container">
      <!-- 顶部框模块 -->
      <div class="form-group">
        <div class="input-group">
          <h4>品牌管理</h4>
        </div>
      </div>

      <!-- 数据表格 -->
      <table class="table table-bordered table-hover mt-2">
        <thead>
        <tr>
          <th>编号</th>
          <th>资产名称</th>
          <th>价格</th>
          <th>创建时间</th>
          <th>操作</th>
        </tr>
        </thead>
        <tbody>
        <tr v-for="(obj) in list" :key="obj.id">
          <td>{{obj.id}}</td>
          <td>{{obj.name}}</td>

          <!-- 如果价格超过100，就有red这个类 -->
          <td :class="{red:obj.price>100}">{{obj.price}}</td>
          <td>{{obj.time}}</td>
          <td><a href="#" @click.prevent="del(obj.id)">删除</a></td>
        </tr>
        </tbody>

        <tfoot v-show="this.list.length==0">
        <tr>
          <td colspan="5" style="text-align: center">暂无数据</td>
        </tr>
        </tfoot>

      </table>

      <!-- 添加资产 -->
      <form class="form-inline">
        <div class="form-group">
          <div class="input-group">
            <input
                type="text"
                class="form-control"
                placeholder="资产名称"
                v-model="name"
            />
          </div>
        </div>
        &nbsp;&nbsp;&nbsp;&nbsp;
        <div class="form-group">
          <div class="input-group">
            <input
                type="text"
                class="form-control"
                placeholder="价格"
                v-model.number="price"
            />
          </div>
        </div>
        &nbsp;&nbsp;&nbsp;&nbsp;
        <!-- 阻止表单提交 -->
        <button class="btn btn-primary" @click.prevent="add">添加资产</button>
      </form>
    </div>
  </div>
</template>

<script>
import moment from 'moment'


export default {
  methods: {
    add(){
      if (this.price!=0&&this.name.trim().length!=0){
        this.list.push({

          id: this.list.length>0?this.list[this.list.length-1].id+1:1,
          price:this.price,
          name:this.name,
          time:new Date()},
        )
        this.price=0
        this.name=""
      }else{
        alert("信息不能为空")
      }

    },
    del(id){
      this.list.findIndex((value,keys,arr)=>{
        if (value.id==id){
          arr.splice(keys,1)
          return
        }
      })

    }



  },
  data() {
    return {
      name: "", // 名称
      price: 0, // 价格
      list: [
        { id: 100, name: "外套", price: 199, time: new Date('2010-08-12')},
        { id: 101, name: "裤子", price: 34, time: new Date('2013-09-01') },
        { id: 102, name: "鞋", price: 25.4, time: new Date('2018-11-22') },
        { id: 103, name: "头发", price: 19900, time: new Date('2020-12-12') }
      ],
    };
  },
  filters:{
    formatDate(val){
      return moment(val).format('YYYY-MM-DD')
    }
  }

};
</script>

<style >
.red{
  color: red;
}
</style>